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Brochantite

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Brochantite

Description Tabs

Description
Locality: 
Milpillas Mine, Cuitaca, Santa Cruz Municipality, Sonora, Mexico
Class: 
Crystal Group/Cluster
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3 × 3 × 1 cm
Description

A sharp cluster of deep green coloured brochantite from Milpillas.  The crystals are very chunky with superb terminations and contrast well against the dickite matrix.

Mineral Data
What's on the rock

Brochantite

Formula: 
Cu4(SO4)(OH)6
Strunz: 
7.BB.25
Crystal System: 
Monoclinic
Hardness: 
3.5 - 4.0
Type Locality: 
Mednorudyanskoye Cu Deposit, Nizhnii Tagil, Sverdlovskaya Oblast', Middle Urals, Urals Region, Russia...